Appendix, DMX Primer, Fixture Linking

APPENDIX

DMX Primer

There are 512 channels in a DMX-512 connection. Channels may be assigned in any manner. A fixture capable of receiving DMX 512 will require one or a number of sequential channels. The user must assign a starting address on the fixture that indicates the first channel reserved in the controller. There are many different types of DMX controllable fixtures and they all may vary in the total number of channels required. Choosing a start address should be planned in advance. Channels should never overlap. If they do, this will result in erratic operation of the fixtures whose starting address is set incorrectly. You can however, control multiple fixtures of the same type using the same starting address as long as the intended result is that of unison movement or operation. In other words, the fixtures will be slaved together and all respond exactly the same.

DMX fixtures are designed to receive data through a serial Daisy Chain. A Daisy Chain connection is where the DATA OUT of one fixture connects to the DATA IN of the next fixture. The order in which the fixtures are connected is not important and has no effect on how a controller communicates to each fixture. Use an order that provides for the easiest and most direct cabling. Connect fixtures using shielded two conductor twisted pair cable with three pin XLR male to female connectors. The shield connection is pin 1, while pin 2 is Data Negative (S-) and pin 3 is Data positive (S+). CHAUVET carries 3-pin DMX compliant cables, DMX-10 (33’), DMX-4.5 (15’) and DMX-1.5 (5’)

FIXTURE LINKING

Figure 1 - DMX connector configuration

	COMMON
1	DMX +
INPUT	3

DMX -

	1	Resistance 120
		ohm 1/4w between
	3
		pin 2 (DMX -) and

2pin 3 (DMX +) of the last fixture.

3 OUTPUT

2	Termination reduces signal errors and to
	avoid signal transmission problems and
	interference, it is always advisable to connect
	a DMX signal terminator.

Note!	If you use a controller with a 5 pin DMX output connector, you will need to use a 5
	pin to 3 pin adapter. Chauvet Model No: DMX5M.
	The chart below details a proper cable conversion:

3PIN TO 5 PIN CONVERSION CHART

CONDUCTOR	3 Pin Female (output)	5 Pin Male (Input)
GROUND/SHIELD	Pin 1	Pin 1
DATA ( - )SIGNAL	Pin 2	Pin 2
DATA ( + ) SIGNAL	Pin 3	Pin 3
DO NOT USE		Do not use
DO NOT USE		Do not use

DMX-40B User Manual

Revised: 2006-12-06 09:36:47

DMX-40B specifications

The Chauvet DMX-40B is an advanced lighting control device that caters to the needs of lighting professionals and enthusiasts alike. Designed to provide a seamless integration of control and creativity, the DMX-40B serves as an impressive tool for stage management, event production, and various performance environments.

One of the standout features of the Chauvet DMX-40B is its ability to manage up to 512 DMX channels. This allows users to control a large array of lighting fixtures, including moving heads, LED fixtures, and effects lights, providing a comprehensive solution for complex lighting setups. The device comes equipped with a user-friendly interface that includes an LCD screen for easy navigation, making it accessible for both beginners and seasoned professionals.

The DMX-40B offers a wide range of operational modes, including manual control, preset scenes, and automated programs. Users can create and store up to 40 scenes and 10 chases, allowing for quick access to customized lighting configurations. This flexibility makes it suitable for various applications, from concerts and theatrical performances to corporate events and dance parties.

Chauvet has incorporated advanced technologies into the DMX-40B, such as the ability to create fade and speed adjustments for chases. This feature enables users to add a professional touch to their lighting sequences, enhancing the overall production quality. Additionally, the device supports MIDI inputs, allowing for synchronization with other musical instruments and components, further enriching the performance experience.

Portability is another key characteristic of the DMX-40B. Its compact design allows for easy transportation and setup, making it an ideal choice for mobile DJs and event planners. The intuitive layout ensures that operators can focus on delivering an impactful show without getting bogged down by complicated settings.

In summary, the Chauvet DMX-40B stands out for its versatility, robust channel management, and user-friendly features. Whether you are controlling a simple setup or a complex rig with numerous fixtures, this DMX controller offers the tools needed to create visually stunning displays. Its combination of advanced technology, ease of use, and portability makes it a valuable asset for anyone in the lighting field. With the DMX-40B, lighting design becomes not just a task but an art form.

Chauvet DMX-40B user manual Appendix, DMX Primer, Fixture Linking

Models: DMX-40B